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2 years ago

6

Candace is trying to figure out how tall her apple tree is. She is Sft 6in and her shadow is 10ft, while the apple tree's shadow

is 32lt, at the same time of day. Using that information, approximately how tall is the apple tree?

1 answer:

Montano1993 [528]2 years ago

6 0

Answer:

b

Step-by-step explanation:

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What is the inverse of y=2x^2-8

DiKsa [7]

Answer:

f − 1 ( x ) = √ 2 ( x + 8 ) /2 , − √ 2 ( x + 8 ) /2

keep it under whole root

Step-by-step explanation:

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3 years ago

Use the quadratic function f(x) = 2x^2 + 4x - 15. Find any x intercepts.

8_murik_8 [283]

So for this function we will be using the quadratic formula, which is $x=\frac{-b+\sqrt{b^2-4ac}}{2a},\frac{-b-\sqrt{b^2-4ac}}{2a}$ , to solve. a = x^2 coefficient, b = x coefficient, and c = constant. Using our equation, we can solve for the zeros (x-intercepts) as such:

$x=\frac{-4+\sqrt{4^2-4*2*(-15)}}{2*2},\frac{-4-\sqrt{4^2-4*2*(-15)}}{2*2}\\ \\ x=\frac{-4+\sqrt{16-(-120)}}{4},\frac{-4-\sqrt{16-(-120)}}{4}\\ \\ x=\frac{-4+\sqrt{136}}{4},\frac{-4-\sqrt{136}}{4}\\ \\ x=1.92,-3.92$

In short, your x-intercepts (rounded to the hundredths) are (1.92,0) and (-3.92,0).

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4 years ago

9. The theater club of a local high school is planning a production. The amount of time t needed to assemble the set is inversel

Vsevolod [243]

Answer:

The situation that represents this situation is:

$t = \frac{60}{n}$

Step-by-step explanation:

The amount of time t needed to assemble the set is inversely proportional to the number people n working.

This means that:

$t = \frac{k}{n}$

In which k is the constant of proportionality.

Twelve people can assemble the set in 5 hours.

This means that for $n = 12, t = 5$ . We use this to find k.

$t = \frac{k}{n}$

$5 = \frac{k}{12}$

$k = 12*5 = 60$

Write an equation to represent the situation.

$t = \frac{60}{n}$

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3 years ago

If one term of a proportion is not known, what can be used to find the value of that term? a. substitution c. cross-multiplicati

Elza [17]

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3 years ago

Xian and his cousin kai both collect stamps. Xian has 52 stamps, and kai has 76 stamps. The boys recently joined different stamp

Darya [45]

<em><u>Explanation</u></em>

Xian has 52 stamps and Kai has 76 stamps.

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So, the total number of new stamps for Xian $= 16x$ and the total number of new stamps for Kai $= 12x$

So, the equation will be......

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3 years ago